2.Low Ki-67 labeling index is a clinically useful predictive factor for recurrence-free survival in patients with papillary thyroid carcinoma
Takashi MASUI ; Katsunari YANE ; Ichiro OTA ; Kennichi KAKUDO ; Tomoko WAKASA ; Satoru KOIKE ; Hirotaka KINUGAWA ; Ryuji YASUMATSU ; Tadashi KITAHARA
Journal of Pathology and Translational Medicine 2025;59(2):115-124
We report a new risk stratification of invasive stage papillary thyroid carcinomas (PTCs) by combining invasive status, using extrathyroid invasion (Ex) status, and tumor growth speed using the Ki-67 labeling index (LI). Methods: We examined tumor recurrence in 167 patients with PTC who were surgically treated at the Kindai University Nara Hospital between 2010 and 2022. The patients were classified according to the degree of invasion [negative (Ex0) or positive (Ex1, Ex2, and Ex3)] and tumor growth speed expressed with Ki-67 LI, as low (<5%) or high (>5%). This study confirmed previous findings that the disease-free survival (DFS) rate in PTCs significantly differed between patients with a high and low Ki-67 index. Results: When combining Ex status (negative or positive) and Ki-67 proliferation status (low or high), the DFS rate of invasion in the negative, low Ki-67 LI group was only 1.1%, while that of invasion in the positive, high Ki-67 LI was 44.1%. This study reports for the first time that recurrence risks can be stratified accurately when combining carcinoma’s essential two features of extrathyroid invasion status and tumor growth speed. Conclusions: We believe the evidence for low tumor recurrence risk may contribute to use of more conservative treatment options for invasive-stage PTCs and help alleviate patient anxiety about tumor recurrence and death.
3.Characteristics and Efforts of Discharge Coordination for Patients with Pediatric Cancer toward End-of-Life—Focus Group Interviews with Staff Involved in Discharge Coordination—
Yuko NAGOYA ; Nobuyuki YOTANI ; Yuko CHO ; Tomoko YOKOSUKA ; Mariko SHIMIZU ; Aya SUZUKI ; Yumi IKEDA ; Tomoo OSUMI
Palliative Care Research 2025;20(1):29-36
In this study, we conducted interviews with staff members who had experience in discharge coordination to clarify the characteristics and efforts of discharge coordination for patients with pediatric cancer toward end-of-life. Focus group interviews were conducted with 11 individuals, including six medical social workers and five nurses (acceptance rate: 84.6%) and a qualitative inductive analysis was conducted. Seven categories were identified as characteristics of discharge coordination for patients with pediatric cancer toward the end-of-life, such as “few home physicians and home health care nurses who could accept terminally ill children” and “a small number of cases and lack of accumulated experience”. Seven categories were identified as efforts of discharge coordination, including “maintaining connections with the community” in three situations: coordination with home physicians and home-visit nursing care, coordination with children and their families, and coordination in hospitals. The number of children who spend their end-of-life days at home is increasing, and we believe that it is necessary to consider expanding the role of pediatric cancer base hospitals in the future, such as collecting information in the community and sharing good practices.
5.Low Ki-67 labeling index is a clinically useful predictive factor for recurrence-free survival in patients with papillary thyroid carcinoma
Takashi MASUI ; Katsunari YANE ; Ichiro OTA ; Kennichi KAKUDO ; Tomoko WAKASA ; Satoru KOIKE ; Hirotaka KINUGAWA ; Ryuji YASUMATSU ; Tadashi KITAHARA
Journal of Pathology and Translational Medicine 2025;59(2):115-124
We report a new risk stratification of invasive stage papillary thyroid carcinomas (PTCs) by combining invasive status, using extrathyroid invasion (Ex) status, and tumor growth speed using the Ki-67 labeling index (LI). Methods: We examined tumor recurrence in 167 patients with PTC who were surgically treated at the Kindai University Nara Hospital between 2010 and 2022. The patients were classified according to the degree of invasion [negative (Ex0) or positive (Ex1, Ex2, and Ex3)] and tumor growth speed expressed with Ki-67 LI, as low (<5%) or high (>5%). This study confirmed previous findings that the disease-free survival (DFS) rate in PTCs significantly differed between patients with a high and low Ki-67 index. Results: When combining Ex status (negative or positive) and Ki-67 proliferation status (low or high), the DFS rate of invasion in the negative, low Ki-67 LI group was only 1.1%, while that of invasion in the positive, high Ki-67 LI was 44.1%. This study reports for the first time that recurrence risks can be stratified accurately when combining carcinoma’s essential two features of extrathyroid invasion status and tumor growth speed. Conclusions: We believe the evidence for low tumor recurrence risk may contribute to use of more conservative treatment options for invasive-stage PTCs and help alleviate patient anxiety about tumor recurrence and death.
6.Evaluation of Workshops on Advance Care Planning for Healthy Individuals
Mayumi TSUJIKAWA ; Anri INUMARU ; Kimiko NAKAMURA ; Hiroki FUNAO ; Tomoko TAMAKI ; Yoshiko TAKEDA ; Miwa SAKAGUCHI
Palliative Care Research 2025;20(2):111-118
Objective: We conducted two workshops to encourage “Jinsei Kaigi” to discuss advance care planning (ACP) with family members or significant others during healthy times and evaluated whether the workshops were effectively motivated participants to engage in ACP. Methods: Two workshops were held with 171 welfare commissioners, and four surveys were conducted (T1-T4) before and after the workshops. The primary endpoint was the rate of “Jinsei Kaigi” implementation, and the secondary endpoints were the Japanese versions of the ACP Engagement Survey (ACPES-J), which measures readiness for ACP, and Death Attitude Inventory (DAI), which were compared before and after the intervention, with T1 VS. T4 as the primary analysis. Results: A total of 149 participants were analyzed, and the implementation rate was 38.3%, which was a significant increase from 6% before implementation (p<.001, w=.54). Self-efficacy, readiness, and ACPES-J total scores increased significantly (p<.001 to .031, d=.29 to .67, respectively), but there were no significant changes in DAI. Conclusion: Our results suggest that workshops provide opportunities to motivate engagement in “Jinsei Kaigi”.
7.Low Ki-67 labeling index is a clinically useful predictive factor for recurrence-free survival in patients with papillary thyroid carcinoma
Takashi MASUI ; Katsunari YANE ; Ichiro OTA ; Kennichi KAKUDO ; Tomoko WAKASA ; Satoru KOIKE ; Hirotaka KINUGAWA ; Ryuji YASUMATSU ; Tadashi KITAHARA
Journal of Pathology and Translational Medicine 2025;59(2):115-124
We report a new risk stratification of invasive stage papillary thyroid carcinomas (PTCs) by combining invasive status, using extrathyroid invasion (Ex) status, and tumor growth speed using the Ki-67 labeling index (LI). Methods: We examined tumor recurrence in 167 patients with PTC who were surgically treated at the Kindai University Nara Hospital between 2010 and 2022. The patients were classified according to the degree of invasion [negative (Ex0) or positive (Ex1, Ex2, and Ex3)] and tumor growth speed expressed with Ki-67 LI, as low (<5%) or high (>5%). This study confirmed previous findings that the disease-free survival (DFS) rate in PTCs significantly differed between patients with a high and low Ki-67 index. Results: When combining Ex status (negative or positive) and Ki-67 proliferation status (low or high), the DFS rate of invasion in the negative, low Ki-67 LI group was only 1.1%, while that of invasion in the positive, high Ki-67 LI was 44.1%. This study reports for the first time that recurrence risks can be stratified accurately when combining carcinoma’s essential two features of extrathyroid invasion status and tumor growth speed. Conclusions: We believe the evidence for low tumor recurrence risk may contribute to use of more conservative treatment options for invasive-stage PTCs and help alleviate patient anxiety about tumor recurrence and death.
9.Impact of fear of coronavirus disease 2019 on attention-deficit/hyperactivity disorder traits associated with depressive symptoms, functional impairment, and low self-esteem in university students: a cross-sectional study with mediation analysis.
Tomoko SUZUKI ; Toshiyuki OHTANI ; Michiko NAKAZATO ; Ariuntuul GARIDKHUU ; Basilua Andre MUZEMBO ; Shunya IKEDA
Environmental Health and Preventive Medicine 2025;30():2-2
BACKGROUND:
High levels of attention-deficit/hyperactivity disorder (ADHD) traits are associated with various outcomes, including depressive symptoms, functional impairment, and low self-esteem. Additionally, individuals with high levels of ADHD traits are reported to be more adversely affected by fear of coronavirus disease 2019 (COVID-19). The current study aimed to examine whether the association between ADHD traits and outcomes was partially mediated by fear of COVID-19 using mediation analysis.
METHODS:
A cross-sectional study was conducted in a sample of university students in medical-related faculties (n = 1,166). ADHD traits, fear of COVID-19, depressive symptoms, functional impairment, and self-esteem were assessed using the adult ADHD Self-Report Scale, Fear of COVID-19 Scale, K6 Scale, Sheehan Disability Scale, and Rosenberg Self-Esteem Scale, respectively. We used linear regression analysis and the Paramed command in Stata to analyze whether fear of COVID-19 mediated the association between ADHD traits and outcomes.
RESULTS:
ADHD traits were significantly associated with outcomes. Regarding the impact of fear of COVID-19, the results revealed a significant association between ADHD traits and fear of COVID-19, and between fear of COVID-19 and outcomes. The results of the mediation analyses showed that the association between ADHD traits and outcomes was partially mediated by the fear of COVID-19 (depressive symptoms: direct effect B = 1.029, 95% confidence interval [CI] 0.878, 1.181, indirect effect B = 0.021, 95% CI 0.002, 0.040; functional impairment: direct effect B = 0.786, 95% CI 0.593, 0.979, indirect effect B = 0.033, 95% CI 0.005, 0.060; self-esteem: direct effect B = -1.052, 95% CI -1.226, -0.878, indirect effect B = -0.024, 95% CI -0.046, -0.002).
CONCLUSIONS
Developing preventive measures against the adverse impacts of pandemics like COVID-19 will be particularly important for individuals with high levels of ADHD traits in future.
Humans
;
COVID-19/psychology*
;
Attention Deficit Disorder with Hyperactivity/epidemiology*
;
Cross-Sectional Studies
;
Self Concept
;
Male
;
Female
;
Depression/epidemiology*
;
Fear/psychology*
;
Young Adult
;
Universities
;
Students/psychology*
;
Adult
;
SARS-CoV-2
;
Mediation Analysis
;
Adolescent
10.Dietary exposure levels to 134Cs, 137Cs, 90Sr, and 239+240Pu in Japan after the Fukushima Daiichi Nuclear Power Plant accident: a duplicate portion study for fiscal years 2012-2014.
Hiroshi TERADA ; Ikuyo IIJIMA ; Sadaaki MIYAKE ; Tomoko OTA ; Ichiro YAMAGUCHI ; Hiroko KODAMA ; Hideo SUGIYAMA
Environmental Health and Preventive Medicine 2025;30():48-48
BACKGROUND:
Since the accident at Fukushima Daiichi Nuclear Power Plant (FDNPP), concerns have arisen in Japan regarding the presence of radionuclides in food. Moreover, exposure levels to 90Sr and Pu isotopes in adults and those to 134Cs+137Cs, 90Sr, and Pu (where Cs, Sr, and Pu are cesium, strontium, and plutonium, respectively) in children have not been examined. Therefore, this study employed a duplicate portion approach to examine dietary exposure levels of radionuclides in adults and children following the FDNPP accident.
METHODS:
The study spanned fiscal years 2012-2014 and was conducted in 10 prefectures: Hokkaido, Iwate, Miyagi, Fukushima, Ibaraki, Saitama, Tokyo, Kanagawa, Osaka, and Kochi. The participants provided portions of their meals for two non-consecutive days and completed questionnaires on the meal items. The activity concentrations of 134Cs, 137Cs, 90Sr, and 239+240Pu, which are targets of standard limits for radionuclides in foods in Japan, were determined according to the Radioactivity Measurement Series. The daily intake was calculated based on the radionuclide activity concentrations in the duplicate portion samples, and the committed effective doses were estimated using dose coefficients for the ingestion of each radionuclide provided by the International Commission on Radiological Protection.
RESULTS:
Approximately 80 duplicate samples were obtained in each fiscal year, and 242 samples were collected. The highest summed activity concentration of 134Cs and 137Cs was 11 Bq/kg, which was recorded in Date City (child) in 2013; this level was approximately one-ninth of the standard limit for general foods (100 Bq/kg). The committed effective dose from annual ingestion of the sample described above was 74 µSv, approximately 14 times lower than the maximum permissible level of 1 mSv/y. Pu was not detected and the 90Sr activity concentrations were similar to those before the FDNPP accident.
CONCLUSIONS
For the samples examined in the present study, the 134Cs, 137Cs, 90Sr, and 239+240Pu dietary exposure levels were considerably lower than the regulatory levels and may not pose a health risk.
Fukushima Nuclear Accident
;
Cesium Radioisotopes/analysis*
;
Humans
;
Japan
;
Dietary Exposure/statistics & numerical data*
;
Adult
;
Plutonium/analysis*
;
Child
;
Food Contamination, Radioactive/analysis*
;
Strontium Radioisotopes/analysis*
;
Male
;
Female
;
Middle Aged
;
Child, Preschool
;
Radiation Monitoring
;
Young Adult
;
Adolescent
;
Aged
;
Radiation Exposure/analysis*


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